New Hampshire Dams
664 dams tracked by the National Inventory of Dams
Total Dams
664
High Hazard
162
24.4%
Poor / Unsatisfactory
152
Average Age
100 yrs
Hazard Classification
High162 (24.4%)
Significant185 (27.9%)
Low300 (45.2%)
Condition Assessment
Satisfactory267 (40.2%)
Fair169 (25.5%)
Poor / Unsatisfactory152 (22.9%)
Not Rated76 (11.4%)
Federal
22
State
170
Local
195
Private
261
Tallest Dams
- Comerford 170 ft
- Moore 149 ft
- Otter Brook Dam119 ft
- Franklin Falls Dam116 ft
- Everett Dam115 ft
High Hazard Dams
- Comerford High
- Moore High
- Otter Brook DamHigh
- Franklin Falls DamHigh
- Everett DamHigh
Poor Condition Dams
All Dams in New Hampshire
Showing 501–525 of 664
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Dole Marsh Dam Rockingham County | 8 | 1977 | Low | Satisfactory |
| Dodge Pond Dam Grafton County | 13 | 1936 | Low | Satisfactory |
| Dodge Falls Grafton County | 18 | 1905 | Low | Satisfactory |
| Dimond Pond Dam Rockingham County | 12 | 1880 | Undetermined | Not Rated |
| Dickerman Pond Dam Belknap County | 20 | 1930 | Significant | Poor |
| Derry Waste Lagoon Dam Rockingham County | 21 | 1978 | Significant | Satisfactory |
| Dells Pond Outlet Dam Grafton County | 20 | 1935 | High | Poor |
| Deer Pond Dam Rockingham County | 12 | 1963 | Low | Fair |
| Deer Meadow Pond Dam Merrimack County | 15 | 1938 | Low | Fair |
| Deering Reservoir Dam Hillsborough County | 25 | 1940 | High | Satisfactory |
| Deep Hole Pond Dam Rockingham County | 15 | 1974 | Low | Fair |
| Dead River Dike Coos County | 14 | 1970 | Low | Fair |
| Dead River Dam 1 Coos County | 47 | 1970 | High | Fair |
| Davison Wildlife Pond Dam Sullivan County | 23 | 1968 | Low | Satisfactory |
| Dartmouth Skiway Sewage Lagoon Dam Grafton County | 4 | 1967 | Significant | Satisfactory |
| Daniels Lake Dam Hillsborough County | 12 | 1961 | Low | Poor |
| Dan Hole River Dam Carroll County | 29 | 1935 | Significant | Poor |
| Damon Upper Reservoir Dam Cheshire County | 14 | 1835 | High | Satisfactory |
| Currier Pond Dam Strafford County | 10 | 1963 | Low | Poor |
| Cummins Pond Dam Grafton County | 10 | 1880 | Low | Satisfactory |
| Crystal Lake Dam Belknap County | 16 | 1958 | High | Poor |
| Crystal Lake Dam Grafton County | 22 | 1910 | Significant | Satisfactory |
| Crowcroft Pond Dam Cheshire County | 10 | 1939 | Low | Fair |
| Crotched Mtn Storage Lagoon Dam Hillsborough County | 15 | 1989 | Significant | Satisfactory |
| Cross Power Coos County | 25 | 1903 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.